swift1894 Posted March 10, 2019 Report Share Posted March 10, 2019 Is this now banned? Link to comment Share on other sites More sharing options...
Rick-n-Jo Posted March 10, 2019 Report Share Posted March 10, 2019 Yup, and no longer manufactured. I'm open to suggestions for what and how to replace it. Apparently it can be overcoated with bitumen, but I won't be doing that 'cos it's rubbish. Blasting? 150 year old rivetted iron hull. Looking at Jotamastic 90 or similar, wondering how thoroughly I'd need to get the YEARS of coal tar off. Link to comment Share on other sites More sharing options...
Mr Pugs Posted March 14, 2019 Report Share Posted March 14, 2019 same situation it would be good to get advice from some one who has painted over tar or bitumen Link to comment Share on other sites More sharing options...
matty40s Posted March 14, 2019 Report Share Posted March 14, 2019 I'm going to test some jotomastic 90 over comastic starting in May. Will be able to give it full drying time and then back in to see what happens. Link to comment Share on other sites More sharing options...
Tony Brooks Posted March 15, 2019 Report Share Posted March 15, 2019 15 hours ago, Mr Pugs said: same situation it would be good to get advice from some one who has painted over tar or bitumen I tried to paint over very old bitumen in my gas locker - the paint melted the bitumen so it cracked long before it dried and looked a complete mess. Basically don't paint over bitumen with a solvent based paint and this includes ordinary oil based, cellulose etc. I suspect you just might get a water based paint to adhere and not soften the bitumen but I would not bother trying. I also suspect two pack will soften the bitumen but have not tried. Tar is a different thing all together and is likely to be more solvent resistant than bitumen. Link to comment Share on other sites More sharing options...
Bee Posted March 15, 2019 Report Share Posted March 15, 2019 What is that Ballistic (spelling could be wrong) stuff? is that maybe compatible? Link to comment Share on other sites More sharing options...
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